Forming Or Treating Optical Article Patents (Class 216/24)
  • Patent number: 10930885
    Abstract: A display device includes a substrate, a circuit layer on the substrate, a display layer on the circuit layer, at least one hole in a display area of the substrate that penetrates the substrate, the circuit layer, and the display layer, and at least two grooves that surround the at least one hole, where each of the at least two grooves has an undercut structure. The substrate includes a first substrate, a first inorganic layer, a second substrate, and a second inorganic layer, which are sequentially stacked, and each of the at least two grooves extends down from the display layer into the second substrate.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: February 23, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD
    Inventors: Seunghun Kim, Sooyoun Kim, Wooyong Sung, Seungho Yoon, Moonwon Chang
  • Patent number: 10840309
    Abstract: A method of fabricating a color filter is provided. In the method of fabricating the color filter, a patterned sacrificial layer having a thickness difference is formed on a substrate such that a patterned black photosensitive spacing material layer is formed by a single-tone photomask or a half-tone photomask and has effects of an original black matrix, a main spacer, and a sub-spacer. Thus, production costs can be reduced and a high yield can be carried out.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: November 17, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Jiangjiang Song
  • Patent number: 10830961
    Abstract: In one embodiment, there is provided an optical fiber sound pickup device including: a housing having a substantially cylindrical structure; a vibration diaphragm mounted to an end face of a first side end of the housing; a ferrule including a main body of a substantially cylindrical shape, at least a part of the main body being mounted in the housing by cooperating with an inner wall of the housing, a head end of the main body that is close to the vibration diaphragm being separated from the vibration diaphragm by a distance; and an optical fiber fixedly extending through into the ferrule, a head face of the optical fiber being flush with an end face of the head end. A method and an equipment for manufacturing an optical fiber sound pickup device are also provided.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: November 10, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Saihua Chen
  • Patent number: 10795080
    Abstract: An optical receiver may include a planar lightwave circuit with an optical path and a tapered reflection surface to direct an optical beam toward a top surface of the planar lightwave circuit. The optical receiver may include a photodiode disposed onto the top surface of the planar lightwave circuit such that a receive portion of the photodiode is aligned to the optical path, wherein a gap between the photodiode and the planar lightwave circuit is less than 5 microns.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: October 6, 2020
    Assignee: Lumentum Operations LLC
    Inventors: Yujian Bao, Zhaoming Li
  • Patent number: 10795173
    Abstract: Optical grating components and methods of forming are provided. In some embodiments, a method includes providing an optically transparent substrate, and forming an optical grating layer on the substrate. The method includes forming an optical grating in the optical grating layer, wherein the optical grating comprises a plurality of angled components, disposed at a non-zero angle of inclination with respect to a perpendicular to a plane of the substrate. A first sidewall of the optical grating may have a first angle, and a second sidewall of the grating has a second angle different than the first angle. Modifying process parameters, including selectivity and beam angle spread, has an effect of changing a shape or dimension of the plurality of angled components.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: October 6, 2020
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Morgan Evans, Rutger Meyer Timmerman Thijssen, Joseph Olson, Peter Kurunczi
  • Patent number: 10782451
    Abstract: A method for producing a reflection-reducing layer system is disclosed. In an embodiment, a method includes depositing an organic layer on the substrate, generating a nanostructure in the organic layer by a plasma etching process, applying a cover layer to the nanostructure, wherein the organic layer, the nanostructure and the cover layer together form a reflection-reducing structure, wherein the cover layer comprises an inorganic material or an organosilicon compound, and wherein the cover layer is at least 5 nm thick and performing a post-treatment after applying the cover layer, wherein a material of the organic layer is at least partially removed, decomposed or chemically converted, and wherein an effective refractive index neff,2 of the reflection-reducing structure after the post-treatment is smaller than an effective refractive index neff,1 of the reflection-reducing structure before the post-treatment.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: September 22, 2020
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Ulrike Schulz, Peter Munzert, Sabrina Wolleb, Friedrich Rickelt, Heiko Knopf
  • Patent number: 10782468
    Abstract: The present invention relates to a method for manufacturing an optical device comprising forming a first trench in a glass plate and a second trench perpendicular to the first trench, wherein the first trench has an end opening into the second trench. The trenches are treated with hydrofluoric acid. The first trench is filled with a material to form a waveguide, and a mirror is formed on the wall of the second trench opposite the waveguide. An encapsulation layer is deposited over the glass plate, waveguide and second trench.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: September 22, 2020
    Assignee: STMICROELECTRONICS SA
    Inventors: Folly Eli Ayi-Yovo, Cédric Durand, Frédéric Gianesello
  • Patent number: 10773993
    Abstract: A cover glass and a manufacturing method thereof are provided, the method includes: coating a first organic layer on a transparent substrate; forming first via holes on the first organic layer at intervals, heating and melting the first organic layer to flow; wet-etching the transparent substrate having the first organic layer to form a first microstructure on a region of the transparent substrate not shielded by the first organic layer; and removing the first organic layer form the transparent substrate. The present disclosure breaks the limitation for preparing microstructures with size below 5 ?m in the existing photolithography process, the organic material in wet-etching process can be controlled by heating to make the organic material melted to flow. The size of the microstructure can be reduced and flexibly adjusted according to the pixel size of display panel, the speckle effect of the display device caused by anti-glare treatment can be reduced.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: September 15, 2020
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yong Yang, Yingbao Yang
  • Patent number: 10756507
    Abstract: A process of forming a semiconductor optical device is disclosed. The semiconductor optical device provides a waveguide structure accompanied with a heater for varying a temperature of the waveguide structure. The process includes steps of: (a) forming a striped mask on a semiconductor substrate; (b) selectively growing a dummy layer on the semiconductor substrate; (c) removing the patterned mask; (d) burying the dummy layer by a supplemental layer; (e) exposing a portion of the dummy layer by etching a portion of the supplemental layer; (f) and removing the dummy layer by immersing the dummy layer within a solution that shows an etching rate for the dummy layer enough faster than an etching rate for the supplemental layer and the substrate so as to leave a void in a region the dummy layer had existed.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: August 25, 2020
    Assignees: Sumitomo Electric Industries, Ltd., Sumitomo Electric Device Innovations, Inc.
    Inventors: Toshimitsu Kaneko, Takuya Fujii, Masami Ishiura, Taro Hasegawa, Toshiyuki Taguchi
  • Patent number: 10746937
    Abstract: Assemblies, optical connectors, and methods for bonding optical elements to a substrate using a laser beam are disclosed. In one embodiment, a method of bonding an optical element to a substrate includes disposing a film layer on a surface of the substrate, disposing the optical element on a surface of the film layer, and directing a laser beam into the optical element. The method further includes melting, using the diameter laser beam, a material of the substrate to create a bond area between the optical element and the surface of the substrate. The film layer is capable of absorbing a wavelength of the laser beam to melt the material of the substrate at the bond area. The bond area includes laser-melted material of the substrate that bonds the optical element to the substrate.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: August 18, 2020
    Assignee: Corning Incorporated
    Inventors: Douglas Llewellyn Butler, Stephan Lvovich Logunov, Mark Alejandro Quesada, Alexander Mikhailovich Streltsov, James Scott Sutherland
  • Patent number: 10718898
    Abstract: An optical device comprises first, second and third elements fabricated on a common substrate. The first element comprises an active waveguide structure supporting a first optical mode, the second element comprises a passive waveguide structure supporting a second optical mode, and the third element, at least partly butt coupled to the first element, comprises an intermediate waveguide structure. If the first optical mode differs from the second optical mode by more than a predetermined amount, a tapered waveguide structure in at least one of the second and third elements facilitates efficient adiabatic transformation between the first optical mode and the second optical mode. Mutual alignments of the first, second and third elements are defined using lithographic alignment marks.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: July 21, 2020
    Assignee: Nexus Photonics LLC
    Inventor: Hyundai Park
  • Patent number: 10712481
    Abstract: A method for fabricating a diffraction grating includes generating an ionized gas, passing the ionized gas through a gating structure to selectively directed gas toward a substrate, injecting an etchant gas into the directed gas, and exposing a surface of the substrate to the directed gas and the injected etchant gas to form grating structures on the surface of the substrate.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: July 14, 2020
    Assignee: Facebook Technologies, LLC
    Inventors: Nihar Ranjan Mohanty, Giuseppe Calafiore, Matthew E. Colburn, Austin Lane, Matthieu Charles Raoul Leibovici
  • Patent number: 10707965
    Abstract: A device may include a substrate. The device may include a carrier mounted to the substrate. The device may include a transmitter photonic integrated circuit (PIC) mounted on the carrier. The transmitter PIC may include a plurality of lasers that generate an optical signal when a voltage or current is applied to one of the plurality of lasers. The device may include a first microelectromechanical structure (MEMS) mounted to the substrate. The first MEMS may include a first set of lenses. The device may include a planar lightwave circuit (PLC) mounted to the substrate. The PLC may be optically coupled to the plurality of lasers by the first set of lenses of the first MEMS. The device may include a second MEMS, mounted to the substrate, that may include a second set of lenses, which may be configured to optically couple the PLC to an optical fiber.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: July 7, 2020
    Assignee: Infinera Corporation
    Inventors: Timothy Butrie, Michael Reffle, Xiaofeng Han, Mehrdad Ziari, Vikrant Lal, Peter W. Evans, Fred A. Klsh, Jr., Donald J. Pavinski, Jie Tang, David Coult
  • Patent number: 10698167
    Abstract: A connector device for connecting optical fiber endpieces comprising an optoelectronic chip, a fiber end piece holder and a reflection surface. The chip is oriented for emitting and/or detecting optical signals along a first propagation direction normal to a circuit board. The reflection surface changes a propagation direction of optical signals from the first propagation direction to a different, second propagation direction and/or vice versa. The connector device comprises a layered optical stack mounted to the circuit board and designed for propagation of optical signals along the first propagation direction. The connector device further comprises a coupling adapter piece mounted to the layered optical stack that holds and/or secures the fiber end piece holder in an orientation enabling propagation of signals radiation along the second propagation direction. The reflection surface for changing between both propagation directions is comprised in the coupling adapter piece.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: June 30, 2020
    Assignee: Corning Optical Communcations LLC
    Inventors: Jeffery Alan DeMeritt, Wojciech Piotr Giziewicz, Christopher Paul Lewallen, James Phillip Luther, Jerald Lee Overcash, Rebecca Kayla Schaevitz
  • Patent number: 10690831
    Abstract: A diffraction grating includes a substrate and an array of triangular ridges extending from the substrate. The ridges run parallel to one another and have triangular cross-sections such that first sides of the ridges face in a first direction and adjacent second sides of the ridges face in a second, different direction. An array of grating lines is disposed over the first sides of the array of ridges, each grating line of the array of grating lines comprising a slab of transparent material supported by the first side of a corresponding ridge of the array of ridges. A refractive index of the array of grating lines is different from a refractive index of the array of ridges.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: June 23, 2020
    Assignee: Facebook Technologies, LLC
    Inventor: Giuseppe Calafiore
  • Patent number: 10684407
    Abstract: Techniques for fabricating a slanted structure are disclosed. In one embodiment, a method of fabricating a slanted structure in a material layer includes injecting a first reactive gas into an reactive ion source generator, generating a plasma that includes reactive ions in the reactive ion source generator, extracting at least some of the reactive ions from the plasma to form a collimated reactive ion beam towards the material layer, and injecting a second reactive gas onto the material layer. The collimated reactive ion beam and the second reactive gas etch the material layer both physically and chemically to form the slanted surface-relief structure.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: June 16, 2020
    Assignee: Facebook Technologies, LLC
    Inventor: Nihar Ranjan Mohanty
  • Patent number: 10668569
    Abstract: Disclosed herein is a laser processing apparatus including a controller. The controller includes a target pattern detecting section performing matching between patterns formed in each device imaged and a key pattern to thereby detect a target pattern included in each device, a spacing detecting section detecting the spacing in a Y direction between the target pattern and an ablation groove formed along each division line by ablation, and a map creating section creating a map showing the spacing in the Y direction between each target pattern and the ablation groove for the plural devices arranged along the ablation groove.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: June 2, 2020
    Assignee: DISCO CORPORATION
    Inventors: Kentaro Odanaka, Hironari Ohkubo, Zentaro Kawasaki
  • Patent number: 10670806
    Abstract: Method for preparing micro-optical structure on a film based on chemical mechanical polishing etching, combining photolithography technology with chemical mechanical polishing technology to make preparation and large-scale integration of large-size high-quality micro optical devices on-chip possible. The method comprises coating metal on film surface, selectively removing the metal film by photolithography (such as femtosecond laser selective ablation, ultraviolet photolithography, electron beam etching, ion beam etching, and reactive ion etching), chemical mechanical polishing, chemical corrosion or over polishing and other steps. Micro-optical devices on-chip prepared by the method have extremely high surface finish and extremely low optical loss.
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: June 2, 2020
    Assignee: Shanghai Institute of Optics And Fine Mechanics, Chinese Academy of Sciences
    Inventors: Ya Cheng, Rongbo Wu, Jintian Lin, Jianhao Zhang, Min Wang
  • Patent number: 10558070
    Abstract: A transmissive-type liquid crystal display device includes a base material having transmissivity, a light-shielding body having a grid pattern in a plan view seen from a thickness direction of the base material, a pixel electrode, a first insulator that is provided to cover the light-shielding body and has transmissivity, and a second insulator that is disposed in contact with the first insulator between the base material and the pixel electrode and has transmissivity. A refractive index of the second insulator is higher than a refractive index of the first insulator. An outer edge of a surface of the second insulator on the pixel electrode side overlaps the light-shielding body in the plan view.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: February 11, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Yukihiro Sugiura
  • Patent number: 10545293
    Abstract: Assemblies, optical connectors, and methods for bonding optical fibers to a substrate using a laser beam are disclosed. In one embodiment, a method of bonding an optical fiber to a substrate includes directing a laser beam into the optical fiber disposed on a surface of the substrate, wherein the optical fiber has a curved surface and the curved surface of the optical fiber focuses the laser beam to a diameter that is smaller than a diameter of the laser beam as it enters the optical fiber. The method further includes melting, using the laser beam, a material of the substrate at a bond area between the optical fiber and the surface of the substrate such that the optical fiber is bonded to the surface of the substrate.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: January 28, 2020
    Assignee: Corning Incorporated
    Inventors: Stephan Lvovich Logunov, Mark Alejandro Quesada, Alexander Mikhailovich Streltsov, Douglas Llewellyn Butler, James Scott Sutherland
  • Patent number: 10535565
    Abstract: A workpiece dividing method includes: a laser processing step of forming along each street a plurality of minute holes extending in a pulsed laser beam application direction; and a dividing step of pressing the streets by a pressing member to divide a wafer along the streets. The minute hole has one end opening at least one of a front surface and a back surface of the wafer and is decreased in diameter from the one end toward the other end. In the dividing step, the pressing member is pressed against that surface of the front surface and the back surface of the wafer at which the one end of the minute hole is not opening.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: January 14, 2020
    Assignee: DISCO CORPORATION
    Inventor: Nao Hattori
  • Patent number: 10488697
    Abstract: Embodiments of the present disclosure provide a pixel structure, including a plurality of sub-pixels arranged in an array, each sub-pixel including a display region and a non-display region, the non-display region of each sub-pixel being formed with a thin film transistor therein, the display region of each sub-pixel being formed therein with a sub-wavelength grating for transmitting therethrough light in a predetermined wavelength range. Embodiments of the present disclosure further provide a method of manufacturing a pixel structure, an array substrate including the pixel structure and a display device.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: November 26, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Zhidong Wang
  • Patent number: 10386553
    Abstract: An optical element (transmissive or reflective) includes a transmissive layer comprising two different optical media arranged among discrete volumes arranged along the layer. The discrete volumes are arranged to approximate a desired phase function (typically modulo 2?) and are smaller than an operational wavelength in order to provide a range of phase delays needed to adequately approximate the desired phase function.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: August 20, 2019
    Assignee: FINISAR CORPORATION
    Inventors: Thomas W. Mossberg, Christoph M. Greiner, Dmitri Iazikov
  • Patent number: 10381029
    Abstract: A heat-assisted magnetic recording (HAMR) write apparatus includes a laser for providing energy and resides in proximity to a media during use. The HAMR write apparatus includes a write pole that writes to a region of the media, coil(s) for energizing the write pole and a waveguide optically coupled with the laser. The waveguide includes at least one multi-mode interference (MMI) device. The MMI device has at least one input, a plurality of outputs, a propagation section and a multi-mode interference (MMI) section. Energy from the laser propagates through the propagation section before the MMI section. The propagation section expands the energy from the laser to a plurality of modes. A first portion of the outputs is output from the propagation section. The MMI section is between the propagation section and a second portion of the plurality of outputs.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: August 13, 2019
    Assignee: WESTERN DIGITAL (FREMONT), LLC
    Inventors: Jianwei Mu, Sergei Sochava, Michael V. Morelli
  • Patent number: 10350791
    Abstract: There is provided a new and improved master manufacturing method, master, and optical body enabling more consistent production of optical bodies having a desired haze value, the master manufacturing method including: forming a first micro concave-convex structure, in which an average cycle of concavities and convexities is less than or equal to visible light wavelengths, on a surface of a base material body that includes at least a base material; forming an inorganic resist layer on the first micro concave-convex structure; forming, on the inorganic resist layer, an organic resist layer including an organic resist and filler particles distributed throughout the organic resist; and etching the organic resist layer and the inorganic resist layer to thereby superimpose and form on the surface of the base material a macro concave-convex structure and a second micro concave-convex structure.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: July 16, 2019
    Assignee: DEXERIALS CORPORATION
    Inventors: Shunichi Kajiya, Hideki Terashima, Yuichi Arisaka
  • Patent number: 10353240
    Abstract: A display apparatus includes a wire grid pattern layer and a capping layer. The wire grid pattern layer includes protrusions having the same shape and spaced at uniform intervals to form a wire grid. The capping layer is on the wire grid pattern layer. The protrusions include metal, and the capping layer includes metal oxide which is an oxide of the metal.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: July 16, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seon-Il Kim, Sungwon Cho, Ji Hun Kim, Yunjong Yeo, Sanggab Kim
  • Patent number: 10345533
    Abstract: Assemblies, optical connectors, and methods for bonding optical fibers to a substrate using a laser beam are disclosed. In one embodiment, a method of bonding an optical fiber to a substrate includes directing a laser beam into the optical fiber disposed on a surface of the substrate, wherein the optical fiber has a curved surface and the curved surface of the optical fiber focuses the laser beam to a diameter that is smaller than a diameter of the laser beam as it enters the optical fiber. The method further includes melting, using the laser beam, a material of the substrate at a bond area between the optical fiber and the surface of the substrate such that the optical fiber is bonded to the surface of the substrate.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: July 9, 2019
    Assignee: CORNING INCORPORATED
    Inventors: Stephan Lvovich Logunov, Mark Alejandro Quesada, Alexander Mikhailovich Streltsov, Douglas Llewellyn Butler, James Scott Sutherland
  • Patent number: 10324031
    Abstract: A photonic processing module (100) comprises a high index-contrast waveguide device comprising a substrate (102), a first layer (104) disposed on the substrate having a first refractive index, and a relatively thin second layer (106) disposed on the first layer. The second layer has a second refractive index providing a high index-contrast with the first layer, and the device includes at least one thin-ridge waveguide element (108) formed in the second layer which supports a guided mode in a longitudinal direction. An optical input port (110) is configured to direct an input beam into a slab mode of the second layer, the beam being directed to propagate at a predetermined angle ? to the longitudinal direction of the thin-ridge waveguide element. The angle ? is associated with a resonant coupling between the slab mode of the second layer and the guided mode of the thin-ridge waveguide element.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: June 18, 2019
    Assignee: Royal Melbourne Institute of Technology
    Inventors: Arnan Mitchell, Thach G. Nguyen, Kiplimo Yego, Anthony Hope
  • Patent number: 10302826
    Abstract: Embodiments described herein relate to methods of forming gratings with different slant angles on a substrate and forming gratings with different slant angles on successive substrates using angled etch systems. The methods include positioning portions of substrates retained on a platen in a path of an ion beam. The substrates have a grating material disposed thereon. The ion beam is configured to contact the grating material at an ion beam angle ? relative to a surface normal of the substrates and form gratings in the grating material. The substrates are rotated about an axis of the platen resulting in rotation angles ? between the ion beam and a surface normal of the gratings. The gratings have slant angles ?? relative to the surface normal of the substrates. The rotation angles ? selected by an equation ?=cos?1 (tan(??)/tan(?)).
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: May 28, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Rutger Meyer Timmerman Thijssen, Morgan Evans, Joseph C. Olson
  • Patent number: 10288980
    Abstract: Embodiments are directed to a (quasi) one-dimensional photonic crystal cavity. This cavity comprises a set of aligned pillars, where the pillars are embedded in a cladding. At least one of the pillars has a sandwich structure, wherein a layer of nonlinear optical material is between two layers of materials having, each, a refractive index that is higher than the refractive index of the nonlinear optical material. Embodiments can further include an all-optical modulator or an all-optical transistor, comprising a photonic crystal such as described above. Finally, embodiments are further directed to methods for modulating an optical signal, using such a photonic crystal cavity.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: May 14, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Stefan Abel, Paul F. Seidler
  • Patent number: 10217916
    Abstract: A transparent light emitting diode (LED) includes a plurality of III-nitride layers, including an active region that emits light, wherein all of the layers except for the active region are transparent for an emission wavelength of the light, such that the light is extracted effectively through all of the layers and in multiple directions through the layers. Moreover, the surface of one or more of the III-nitride layers may be roughened, textured, patterned or shaped to enhance light extraction.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: February 26, 2019
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Shuji Nakamura, Steven P. DenBaars, Hirokuni Asamizu
  • Patent number: 10204644
    Abstract: A recording head includes a magnetic write transducer proximate a near-field transducer. The magnetic write transduce includes a yoke extending in a direction normal to a media-facing surface and a having an edge facing and recessed from the media-facing surface. A write pole extends beyond the first end of the yoke towards the media-facing surface and overlaps a first surface of the yoke that faces the near-field transducer. The write pole has a stepped edge facing away from the media-facing surface. Two or more coil turns are stacked relative to one another in a down-track direction. The two or more coils face a second surface of the yoke that is opposed to the first surface.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: February 12, 2019
    Assignee: Seagate Technology LLC
    Inventors: Mourad Benakli, Kirill Aleksandrovich Rivkin, Huaqing Yin, Hua Zhou, Tae-Woo Lee
  • Patent number: 10197737
    Abstract: Embodiments of the present disclosure are directed toward an optical apparatus that includes a semiconductor layer to propagate light from at least one light source. The optical apparatus may further include a curved echelle grating with a plurality of grating teeth, the echelle grating at an outer side of the semiconductor layer. The curved echelle grating may include a plurality of grating teeth, and a grating tooth of the plurality of grating teeth may have a grating facet and a shadow facet. A shadow facet may have an angle of grating greater than 0 degrees with respect to a normal of a curve of the curved echelle grating. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: February 5, 2019
    Assignee: Intel Corporation
    Inventor: Wenhua Lin
  • Patent number: 10134603
    Abstract: In an embodiment, a method of planarizing a surface includes applying a first layer to a surface including a protruding region including at least one compound semiconductor and a stop layer on an upper surface such that the first layer covers the surface and the protruding region, removing a portion of the first layer above the protruding region and forming an indentation in the first layer above the protruding region, the protruding region remaining covered by material of the first layer, and progressively removing an outermost surface of the first layer to produce a planarized surface including the stop layer on the upper surface of the protruding region and an outer surface of the first layer.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: November 20, 2018
    Assignee: Infineon Technologies AG
    Inventors: Albert Birner, Helmut Brech
  • Patent number: 10067291
    Abstract: A method of manufacturing a waveguide in a glass plate is disclosed. The glass plate is scanned with a laser beam directed orthogonally to the glass plate to form a trench according to a pattern of the waveguide to be formed. The scanning is performed by pulses of the laser beam having a duration between 2 and 500 femtoseconds. The glass plate with the trench is treated with hydrofluoric acid. After treating the glass plate, the trench is filled with a material having an index different from that of glass, and, after filling the trench, a cladding layer is deposited.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: September 4, 2018
    Assignee: STMicroelectronics SA
    Inventors: Cédric Durand, Frédéric Gianesello, Folly Eli Ayi-Yovo
  • Patent number: 10018833
    Abstract: In a MEMS device (1), a first drive portion (40) is divided into a first drive section (41) and a second drive section (42). A second drive portion (50) is divided into a third drive section (51) and a fourth drive section (52). The first drive section, the second drive section, the third drive section, and the fourth drive section are controlled for driving independently of each other to incline an optical component (10).
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: July 10, 2018
    Assignee: Funai Electric Co., Ltd.
    Inventors: Manabu Murayama, Kouichi Kugo, Naoki Inoue, Hitoshi Fujii
  • Patent number: 10012519
    Abstract: A displacement measurement device includes: a light source; a first diffraction grating and a second diffraction grating arranged along a path of light from the light source and movable relative to one another, the first and second diffraction gratings generating diffracted light; an optical sensor that detects interference light produced by interference between ?nth order diffracted light generated as a result of the second diffraction grating diffracting +nth order diffracted light from the first diffraction grating and +nth order diffracted light generated as a result of the second diffraction grating diffracting ?nth order diffracted light from the first diffraction grating, where n is a natural number greater than or equal to 1; and a calculation unit calculating, according to a signal from the optical sensor, a relative displacement between the first and second diffraction gratings in a direction orthogonal to an optical axis of the first and second diffraction gratings.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: July 3, 2018
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Fuyuki Miyazawa, Yasuhito Hagiwara, Takaki Hamamoto, Katsuhiro Oyama
  • Patent number: 10007060
    Abstract: Fabricating the mode transformer includes forming a cladding trench in a first light-transmitting medium that is included on a wafer. A lateral cladding is formed in the cladding trench such that the lateral cladding becomes an optical cladding on a lateral side of a first tapered portion of a waveguide. A second light-transmitting medium is formed on the wafer such that a portion of the first light-transmitting medium is between a bottom of the trench and the second light-transmitting medium. The second light-transmitting medium is patterned so as to define a second tapered portion of the waveguide over the first tapered portion of the waveguide.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: June 26, 2018
    Assignee: Mellanox Technologies Silicon Photonics Inc.
    Inventors: Wei Qian, Monish Sharma
  • Patent number: 10007146
    Abstract: The present invention provides backlight module and manufacturing method thereof, display device comprising backlight module and driving method for driving the display device. The backlight module comprises first substrate and second substrate opposite to each other. Each of the first and second substrates comprises multiple photic areas and shading areas arranged at intervals thereon, and projections of the shading areas of the first substrate on the second substrate completely cover the photic areas of the second substrate. On side of the first substrate opposite to the second substrate, first reflective layers which are bendable are formed on the shading areas thereof, and on side of the second substrate opposite to the first substrate, second reflective layers are formed on the shading areas thereof. The first reflective layers, in a bent state, reflect light to the second reflective layers which then reflect light to the photic areas of the first substrate.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: June 26, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Jisheng Zhao
  • Patent number: 9960202
    Abstract: Disclosed is a solid-state imaging device including a plurality of pixels and a plurality of on-chip lenses. The plurality of pixels are arranged in a matrix pattern. Each of the pixels has a photoelectric conversion portion configured to photoelectrically convert light incident from a rear surface side of a semiconductor substrate. The plurality of on-chip lenses are arranged for every other pixel. The on-chip lenses are larger in size than the pixels. Each of color filters at the pixels where the on-chip lenses are present has a cross-sectional shape whose upper side close to the on-chip lens is the same in width as the on-chip lens and whose lower side close to the photoelectric conversion portion is shorter than the upper side.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: May 1, 2018
    Assignee: Sony Corporation
    Inventors: Rena Suzuki, Hiroki Tojinbara, Ryoto Yoshita, Yoichi Ueda
  • Patent number: 9958625
    Abstract: A structured substrate for optical fiber alignment is produced at least in part by forming a substrate with a plurality of buried conductive features and a plurality of top level conductive features. At least one of the plurality of top level conductive features defines a bond pad. A groove is then patterned in the substrate utilizing a portion of the plurality of top level conductive features as an etch mask and one of the plurality of buried conductive features as an etch stop. At least a portion of an optical fiber is placed into the groove.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: May 1, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Russell A. Budd, Paul F. Fortier
  • Patent number: 9935242
    Abstract: Structures are incorporated into a semiconductor light emitting device which may increase the extraction of light emitted at glancing incidence angles. In some embodiments, the device includes a low index material that directs light away from the metal contacts by total internal reflection. In some embodiments, the device includes extraction features such as cavities in the semiconductor structure which may extract glancing angle light directly, or direct the glancing angle light into smaller incidence angles which are more easily extracted from the device.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: April 3, 2018
    Assignee: Lumileds LLC
    Inventors: Jonathan J. Wierer, Aurelien Jean Francois David, Henry Kwong-Hin Choy
  • Patent number: 9924593
    Abstract: A graphene wiring structure of an embodiment has a substrate, a metal part on the substrate, multilayered graphene connected to the metal part, a first insulative film on the substrate, and a second insulative film on the substrate. The metal part is present between the first insulative film and the second insulative film. Edges of the multilayered graphene are connected to the metal part. A side face of the first insulative film vertical to the substrate opposes a side face of the second insulative film vertical to the substrate. A first outer face of the multilayered graphene is in physical contact with a first side face of the first insulative film vertical to the substrate. A second outer face of the multilayered graphene is in physical contact with a second side face of the second insulative film vertical to the substrate.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: March 20, 2018
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tadashi Sakai, Yuichi Yamazaki, Hisao Miyazaki, Masayuki Katagiri, Taishi Ishikura, Akihiro Kajita
  • Patent number: 9921370
    Abstract: A waveguide for the extraction of light at low levels of reflection arranged to guide light from an electro-optical component on a chip to a facet on the chip for extraction includes a first part and a second part. The first part (4) is extended, the second part (5) includes a surface (JK) through which the light exits from the waveguide (1). A non-adiabatic longitudinal section (GHLM) is located after the first part (4) but before the surface (JK) in the direction of propagation of the light, and the surface (JK) forms in the plane of the chip a first angle (V1) with the optical axis (A) of the first part (4) that lies between 5 and 80 degrees.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: March 20, 2018
    Assignee: SYNTUNE AB
    Inventors: Jan-Olof Wesstrom, Per Granestrand, Stefan Hammerfeldt
  • Patent number: 9874694
    Abstract: A plurality of Bragg gratings are formed at predetermined locations of a laminate including a mounting substrate, a clad layer provided on the mounting substrate and an optical material layer provided on the clad layer. Optical waveguides are formed each including at least each of the Bragg gratings. Masks are formed each covering a region corresponding to each of the grating elements on the optical material layer. The optical material layer and clad layer are etched to shape an end face of each of the grating elements.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: January 23, 2018
    Assignee: NGK Insulators, Ltd.
    Inventors: Keiichiro Asai, Shoichiro Yamaguchi, Jungo Kondo, Naotake Okada, Tetsuya Ejiri
  • Patent number: 9868634
    Abstract: A method for manufacturing at least one stamp may include preparing a mold that includes mold protrusions, wherein the mold protrusions extend parallel to each other in a plan view of the mold and include a first mold protrusion. The method may further include providing resin on the mold, wherein the resin partially covers the mold protrusions without completely covering the mold protrusions, and wherein a side of the resin is at an angle with respect to the first mold protrusion in a plan view of a structure that includes the mold and the resin. The method may further include curing the resin to form cured resin. The method may further include forming a stamp that includes the cured resin.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: January 16, 2018
    Assignee: SAMSUNG DISPLAY CO. LTD.
    Inventors: Dae Young Lee, Hyun Bin Cho, Eun Jung Kim, Gug Rae Jo
  • Patent number: 9864109
    Abstract: A plasmonic device having a transparent conducting oxide (TCO) waveguide and a tunable voltage applied across the TCO and a metal layer for modulating an input optical signal.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: January 9, 2018
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Ho Wai Lee, Stanley Burgos, Georgia Papadakis, Harry A. Atwater
  • Patent number: 9864113
    Abstract: A method for fabricating a holographic blazed grating is provided. The method includes: coating a photoresist layer on a substrate; performing lithography on the photoresist layer to form a photoresist grating; performing vertical ion beam etching on the substrate by using the photoresist grating as a mask, to form a homogeneous grating by transferring a pattern of the photoresist grating onto the substrate; cleaning the substrate to remove remaining photoresist; performing tilted Ar ion beam scanning etching on the substrate by using the homogeneous grating as a mask, and etching different portions of the substrate by utilizing a obscuring effect of the homogeneous grating mask on the ion beam, to form a triangular groove shape of the blazed grating; and cleaning the substrate to obtain the holographic blazed grating.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: January 9, 2018
    Assignee: Soochow University
    Inventors: Quan Liu, Jianhong Wu, Minghui Chen
  • Patent number: 9859028
    Abstract: The invention concerns to a method of producing a Fresnel Zone Plate (1) for applications in high energy radiation including the following steps: supply of a substrate (2) transparent for high energy radiation, deposition of a layer (3) of a metal, a metal alloy or a metal compound on a planar surface (4) of the substrate (2), calculating a three dimensional geometrical profile (5) with a mathematical model, setting up a dosage profile (6) for an ion beam of the ion beam lithography inverse to the calculated three dimensional geometrical profile (5) and milling a three dimensional geometrical profile (5) with concentric zones into the layer (3) with ion beam lithography by means of focused ion beam.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: January 2, 2018
    Assignee: Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V.
    Inventors: Gisela Schuetz, Corinne Grevent, Kahraman Keskinbora, Michael Hirscher
  • Patent number: 9823414
    Abstract: A semiconductor device for use in an optical application and a method for fabricating the device. The device includes: an optically passive aspect that is operable in a substantially optically passive mode; and an optically active material having a material that is operable in a substantially optically active mode, wherein the optically passive aspect is patterned to include a photonic structure with a predefined structure, and the optically active material is formed in the predefined structure so as to be substantially self-aligned in a lateral plane with the optically passive aspect.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: November 21, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Lukas Czornomaz, Jens Hofrichter, Mirja Richter, Heike E. Riel